Title :
Hybrid forwarding for serial and parallel wireless relaying in m-nakagami fading channel
Author :
De, Chanchal Kumar ; Kundu, Sumit
Author_Institution :
Dept. of Electron. & Commun. Eng., Nat. Inst. of Technol., Durgapur, India
Abstract :
In this paper, an adaptive forwarding strategy for wireless networks using relays in multi hop and cooperative network is analyzed. Two schemes, amplify-and-forward (AF) and decode-and-forward (DF) are investigated depending on channel condition. Further it allows switching between the two schemes according to channel condition. The bit error probability performance (BEP) for the proposed hybrid strategy has been evaluated in presence of m-nakagami fading. We have evaluated the BER performance for variable number of relays in multi hop and cooperative network. The impact of decoding threshold and `m´ parameter on bit error rate (BER) is indicated. Further BEP performance is assessed using LDPC code.
Keywords :
Nakagami channels; adaptive decoding; amplify and forward communication; cooperative communication; decode and forward communication; error statistics; parity check codes; radio networks; relays; AF network; BEP performance; BER performance; DF network; LDPC code; adaptive forwarding strategy; amplify-and-forward network; bit error probability performance; bit error rate performance; cooperative relay network; decode-and-forward network; decoding threshold; m-Nakagami fading channel; multihop relay network; parallel wireless relaying; serial wireless relaying; wireless network; Adaptive systems; Bit error rate; Decoding; Fading; Parity check codes; Relays; Signal to noise ratio; Amplify and forward (AD); BER; Log-likelihood ratio (LLR); Low Density Parity check (LDPC) code; adaptive decode and forward (ADF); decode and forward (DF);
Conference_Titel :
Computer and Communication Technology (ICCCT), 2011 2nd International Conference on
Conference_Location :
Allahabad
Print_ISBN :
978-1-4577-1385-9
DOI :
10.1109/ICCCT.2011.6075102
